EP 3232588 A1 20171018 - OPTICAL TRANSMITTER
Title (en)
OPTICAL TRANSMITTER
Title (de)
OPTISCHER SENDER
Title (fr)
ÉMETTEUR OPTIQUE
Publication
Application
Priority
JP 2014082825 W 20141211
Abstract (en)
Provided is an optical transmitter (12) that can obtain stable light output even when control of switching between outputting a modulation signal input into at least one optical modulator of a plurality of cascade-connected optical modulators and stopping outputting the modulation signal is executed. The optical transmitter (12) includes an optical modulator (110) configured to modulate input light and outputs a light signal (110b), a drive unit (111a) configured to output a modulation data signal (110a) to the optical modulator (110), and a bias controller (114) configured to perform feedback control of bias voltage applied to the optical modulator (110). During a modulation OFF operation of the optical modulator (110), the bias controller (114) switches a control target point from a first control target point to a second control target point and executes the feedback control.
IPC 8 full level
H04B 10/516 (2013.01)
CPC (source: EP US)
G02F 1/0123 (2013.01 - EP US); G02F 1/225 (2013.01 - EP US); H04B 10/25 (2013.01 - US); H04B 10/516 (2013.01 - EP US); H04B 10/54 (2013.01 - US); H04J 14/02 (2013.01 - EP); G02F 1/212 (2021.01 - EP US); G02F 2201/58 (2013.01 - EP US); H04J 14/02 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3232588 A1 20171018; EP 3232588 A4 20180815; CN 107005311 A 20170801; JP 6261765 B2 20180117; JP WO2016092666 A1 20170525; US 10042191 B2 20180807; US 2017351123 A1 20171207; WO 2016092666 A1 20160616
DOCDB simple family (application)
EP 14907713 A 20141211; CN 201480083908 A 20141211; JP 2014082825 W 20141211; JP 2016563350 A 20141211; US 201415534817 A 20141211